NS / Naveen Sundar
FULL STACK ENGINEER / BACKEND FOCUSED

From an idea
to production.

I’m Naveen. I build APIs, distributed services, and AI-powered workflows—and take responsibility for how they run in production.

4+ yearsBuilding production systems
India × GermanyRemote engineering at CO2OPT
Design to deploymentEnd-to-end feature ownership
01 / SELECTED WORK

Systems I’ve helped
bring to life.

Selected production work at CO2OPT and a personal project. Descriptions focus on my contributions.

02CO2OPT / DOCUMENT PROCESSING

Documents into
application data.

Built OCR workflows with AWS Textract and connected extracted information to backend services and business workflows.

Engineering contribution

Integrated document extraction with existing application services, carrying extracted data into downstream workflows rather than leaving it as isolated OCR output.

AWS TextractNode.jsREST APIs
03CO2OPT / ASYNCHRONOUS SYSTEMS

Work that keeps
moving in the background.

Designed queue-based processing for email and application workflows, with retries, failure handling, and operational alerts.

Engineering contribution

Used BullMQ and AWS SQS/SNS for asynchronous processing, and built visibility into production systems through ELK and Grafana.

BullMQSQS / SNSGrafana
04PERSONAL PROJECT

Portfolio Intelligence Dashboard

An AI-assisted dashboard bringing holdings, market indices, and financial signals together through Zerodha Kite MCP and REST integrations.

TypeScriptMCPKIRO CLI

Built with AI-agent workflows while retaining ownership of architecture, integrations, validation, and business logic.

Explore repository
02 / EXPERIENCE

Building. Shipping.
Taking ownership.

AUG 2022 — PRESENT

CO2OPT

Hamburg, Germany · Remote

Full Stack Engineer

Backend-focused engineering in a small startup: microservices, APIs, database changes, AI integrations, and React frontend features.

Own features from technical design and implementation through testing, GitLab CI/CD, AWS deployment, monitoring, and production support.

APR 2022 — JUL 2022

Spotkwik

Bengaluru, India

Backend Developer

Built SaaS backend services and REST integrations. Worked with MySQL, Amazon S3, Razorpay payments, and external social APIs alongside frontend engineers.

03 / TOOLKIT

The tools behind
the work.

Backend & databases

Node.js · TypeScript · Hapi.js · Express.js · REST APIs · Microservices · NoSQL · RDBMS · Redis · Sequelize

Cloud & messaging

AWS · EC2 · S3 · CloudFront · Textract · SQS · SNS · BullMQ

DevOps & observability

Docker · Docker Compose · GitLab CI/CD · ELK · Grafana · Prometheus · Tempo · Jest

Frontend

React · Material UI · Redux · Redux-Saga · Formik · Yup

AI integrations

OpenAI APIs · Tool calling · MCP · Speech-to-Text · Text-to-Speech

CONTINUOUS LEARNING

Claude Code in Action — Anthropic, 2026 · System Design Workshop — Physics Wallah, 2024

04 / LET’S CONNECT

Have a system
worth building?

Open to fully remote backend and full-stack opportunities.
Based in Tamil Nadu, India. Comfortable collaborating internationally.